#### Setting up a SIP phone with SDF VoIP

SDF Voice over Internet Protocol Telephony is a service feature available to the ARPA, META and Validated USERS membership levels. It allows an SDF user to make voice and video calls to other SDF users and to linked Telephony services via a SIP client on a 3G or WIFI cellphone, WIFI enabled mobile device, or an Internetworked computer.

SDF VoIP set up and server configuration can be accessed via 'maint' at the shell ('maint' -> v -> p).

Below is a list of known-to-work sip clients, and general instructions on configuring and setting up a SIP client. There may also be client-specific instructions as well.

Wikipedia also has a list of notable SIP clients.

#### Tested SIP Hardware

##### Routers (with SIP capabilities)

- FritzBox 7340

##### Desktop

- Grandstream GXP2000
- Grandstream DP750 with DP720 handset
- snom 300
Cisco SPA-525G2
- Cisco 7940G (Client Instructions)

##### Analog Phone Adaptor

- Grandstream HandyTone 286
- Grandstream HT801

#### Tested SIP clients

##### Cross-platform

- Linphone for iOS, Android, and Linux
- Bria Solo (formerly X-lite) Windows, Mac OS X - Desktop Client
- Blink Windows, Mac OS X, Linux - Desktop Client
- Ekiga Windows and Linux - Supports Video

##### Android

- CSipSimple
- Unlocked 2.3 (Gingerbread), 4.0 and up (including Android 10) handsets have native SIP support

##### iPhone/iPad/iTouchU

- Fring on the Apple iPhone, iPod, iPad
- Acrobits Groundwire

##### Nokia

- Built-in client on Nokia phones and tablets (N810)

##### Mac OS X

- Telephone, available through the App Store.

##### Unix-ish

- XMeeting

##### Windows

- MicroSIP Open Source SIP client for Windows

#### General Instructions

All SIP clients must have at least 3 bits of information:

extension
  The "username" used for authentication. Currently, the extension is a series of numbers such as "6000". A directory of users is also available. The assigned extension will be given in an email. Do not use your SDF username.
domain
  This may also be known as the server to connect with. Use sip.sdf.org as the server; use the default port of 5060/udp. Please note: some clients infer the domain from the extension. In this case, the extension will be in the form of "extension@domain", or "sip:extension@domain"; eg, "6000@sip.sdf.org" would be a valid username that includes the domain.
password
  This is the password used to authenticate to the SIP server. This will be provided in the email as well, but may change very soon in the future. The password can be reset via the maint command.

#### Client Instructions

Please see the client instructions page for specific client instructions.

#### Voicemail

Voicemail messages will be automatically mailed to your SDF email address in WAV format.

#### PSTN

Want to call the public switched telephone network? Read the info here

This tutorial is far from complete. Wanna make it better? Edit it!

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